Window latch



Feb. 7, 1928. 1,658,688

c. RICHARD;

WINDOW LATCH Filed Aug. 27. 1925 :1 BY Z2 g 7 2 0 ATT VEY.

Patented Feh. i 1928.

ra'rnr ore-ice.

CAMILE RICHARD, F PORT ARTHUR, TEXAS.

WINDOW LATCH.

Application filed August 27, 1926.

This invention relates to window sash latching device's.

The primary ob ect of this invention the provision, in amanner as hereinafter set forth, of a sash latching device designer to be carried by the sash and to engage the side of the frame in which the .sash works, to prevent the raising or lowering of the sash from the outside.

Another object of the invention is the provision. in a manner as hereinafter set forth, of window sash latch designed to be fitted into the sash frame adjacent the side of the window frame to engage the side of the frame for the prevention of the raising of the lower sash or of the lowering of the upper sash, and having means whereby the window frame engaging element of the device may be released for the operation of the sash.

A. still further object. of the invention is the provision, in a manner as hereinafter set forth, of a window sash latch which is designed to he fitted into the sash frame in such manner as to be inconspicuous, and the parts of the device are further designed to be strong and durable, efficient for the purpose set forth, comparatively inexpensive to manufacture, and simple to install.

The invention will be best understoodfrom a consideration of the following detailed description taken in connection with the accompanying drawing forming a part of this specification, with the understanding, however. that the invention is not confined to any strict conformity with the showingof the drawing but may be changed or modified so long as such changes or modifications mark no material departure from the salient features of the invention as expressed in the appended claims.

In the drawing Figure 1 shows a portion of a window frame and window sash. showing the device embodying this invention applied to the sash.

Figure 2 shows in detail the construction of the device which is designed to he applied to the upper sash of a window.

fl igure 3 is a transverse section taken upon the line 3-3 of Figure 2.

Figure 4t is a detailed view showing the device designed to be applied to the lower sash of a window.

' I transverse section taken ups-a Figure h Serial No. 132,017.

Figure 6 is a detailed View of a cover plate.

Figure 7 is a detailed view of the escutcheon, of which the plate shown in Figure 6 forms a part.

Figure 8 is a detailed view of a bearing plate forminga part of the device used in the upper sash and,

Figure 9 is a detailed View of a bearing plate forming a part of the device as used in the lower sash.

Referring now to the drawing in detail wherein like numerals of reference indicate corresponding parts throughout the several views, the numeral 1 indicates aportion of a window frame and the numerals 2 and 3 indicate the lower and upper sashes of the frame, respectively.

The sash latching devices for the lower and upper frames 2 and 3 are indicated generallv by the numerals 4 and 5, respectively.

Although the principle of both devices 41 and 5 is the same basicly, there is a slight difference in construction between the two members and the description will first be confined to the specific construction of the member t which is designed to be used in connection with the lower sash 2. The member 4 comprises an inner bearing plate 6 of substantially triangular conformation and an outer escutcheon plate 7 which is provided with the securing ears8 which sets are provided with screw apertures 9. The plate 7 has also a substantially triangular door 10 cut therefrom which door'isprovided with the apertures 11 for the passage of securing elements not shown. for holding the same in position against the frames .2.

In order to place the locking element in position, the face of the frame 2 has formed therein a substantially triangular pocket 12 formed in inverted position that is with the straight and inclined sides thereof converging downwardly, and opening through the side of the frame toward the windowframe l. The plate 6 is secured against the inner wall of the pocket 12 and the escutcheon i secured against the outer face of the sash frame 2 in the manner shown. with the removable door portion 10 overlying the poclret. The door 10 is adapted to be secured directly to the sash frame 2 by passing securing members through the apertures 11. Positioned upon the inclined wall 13 of the poclret 12.,ivhich "wall is ""re'cted down-' .rdly toward frame i a hearing or traction plate 14: the upper end of which is pivotally secured as at 15 to the end plate 16, which end plate is provided with an aperture for the passage of a securing element. This bearing or traction plate la is provided with roughened upper surfaces as is clearly shown in Figures i and 9.

Extending transversely through the upper portion of the pocket 12 is a shaft 17 one end of which bears in the upper portion of the plate 6 while the other or outer end extends through the aperture 18 in the upper part oi the escutcheon plate 7. The outer end of this shalt 17 carries thereon a crank member 19 which has at its free one an inwardly extending pin 20 which is adapted to engage in an aperture in the lace oi the escutcheon plate to hold the crank 19 in set position.

Positioned within the pocket 12 and resting upon the traction plate 14:, is a'binding or locking roller 21. liach end oi this roller hasa trunnion 22 extending therefrom and a bail 2b overlies the roller 21 and has the ends of the legs thereof each engaging one oi the trunnions 22 of the roller. 'lhe central portion of the bail has an eye formed thereon as indicated at 2a and attached to this eye is a cord 25 which has its other end attached to and adapted to be wound about the shaft 17 as shown in 'Figures 1- and 5.

i As will be readily seen upon reference to Figure 4;, the roller 21 normally assumes position in the lower or constricted portion of the pocket 12 thus binding between the adjacent face of the window frame 1 and the traction plate 14.

It will bereadily seen that upon attempting to raise the lower sash 2, the roller 21 will be bound more tightly betwcenthe traction plate ll and the adjacent face of the window frame 2 and will therefore stop further upward movement of the sash. Iii order to raise the sash without diliieulty, the 01321111119 is: sprung outwardly so that the pin 20 thereof is disengaged from the aperture in theescutcheon plate, and the crank turns thus winding upon the shaft 17 the'cord' 25 and consequently drawing the roller 21 upwardly. The roller being drawn to a space of greater width than the diameter of the roller, will consequently rest upon the plate 1i an lnot: touch the side, of the window frame 1 and'thereforethe sash carrbe readily raised.

Referring now to the structure of the latching device 5 which is designed to he used in connection with the upper'sash 3,

there is shown an inner plate 26 which is substantially triangular in conformation and has extending from the edge of the hypotenuse, suhstantially inidwaythe ends thereof, the substantially triangular inverted extension 27. A

Pocket s o m d n th fa not the. upper correspondingly shaped sash 3, opening through the side of the sash against the inner face of the window frame 1, in the manner shown in Figure 2. As shown, the substantially trian ular plate 26 and the pocket 28 which is termed in the sash has the constricted portion uppermost thus causing the inclined wall 28 to he di rected upwardly toward the lace oi? the adjacent frame 1. A traction plate 2%) is secured against. the face of the inclined wall 28 and as shown, this plate 29 has a relatirely wide longitudinally extending slot therethrough as indicated at El The cen tral portion ol the face of the plate has a roughened surl'ace similar to the traction iare oi the plate Ll. The slot 30 ot' the plate 29 overlies the recess or pocket 27 allowing comn'mnication between the pockets 26 and 2'7.

Extending transversely through the upper and inner portion oi the pocket 27 is a shaft 31 which carries a resilient tongue 32 which ntends from the shaft through the aperture 30 01' the plate 29 and into the pocket 2a. The shalt 251 has upon its outer end the crank arm 233 the free end of which arm has extending from the inner face thcreoi the pin which is designed to engage in one of a plurality of apertures 35 formed in the escutcheon plate 36 which lies against the face of the "frame 3 and covers the pockets 26 and 27.

Jr binding or latching roll 38 rests upon the top of the resilient tongue and normally bears against the adjacent face of the P111116 1. It will be readily seen that upon swinging the arm 33 downwardly the tongue 32 will be raised and cause the roll 38 to more upwardly between the plate 29 and the adjacent face of the frame 1 and when held inthis position any attempl to more the frame 3 downwardly will cause the roll 38 to bind more tightly betwecl'x the converging walls set up between the inner wall of the pocket 26 and wall of the adjacent Frame. Upon allowing the spi'ing tongue 32 to more downwardly, the roll 38 will be released and therefore downward movement of the sash 3 can take place.

Having thus described my invention what I claim is 1. A window sash fastener comprising an inner'plate adapted to be secured within a recess formed in a sash rail, an outer plate opposing and spaced from said inner plate, adapted to be secured to the rear face of such railand having a cutout portion, a clo sure seated in said cutout portion, adapted to be secured to the rear face of such rail and forming a continuation of said outer plate, a permanently inclined rectangular member positioned between said plates, adapted to be secured to such rail and haw ing one of its faces roughened throughout, a bodily shiftablecylindrical roller having gular its periphery roughened throughout and coacting with said member to fasten the sash, a rotatable shaft journaled in the upper ends of said plates, and means carried by the shaft for bodily shifting said roller.

2. A window sash fastener comprising an inner plate adapted to be secured within a recess formedin a sash rail, an outer plate opposing and spaced from said inner plate, adapted to be secured to the rear face of such rail and having a cutout portion, a closure seated in said cutout portion, adapted to be secured to the rear face of such rail and forming a continuation of said outer plate, a permanently inclined rectanmeinber positioned between said plates, adapted to be secured to such rail and having one of its faces roughened throughout, a bodily shiftable cylindrical roller having its periphery roughened throughout and coacting with said member to fasten the sash, a rotatable shaft journaled in the upper ends of said plates, means carried by the shaft for bodily shifting said roller, and means carried by the shaft and engaging in said outer plate to prevent rotation of the shaft.

3. A window sash fastener comprising an inner plate adapted to be secured within a recess formed in a sash rail, an outer plate opposing and spaced from said inner plate, adapted to be secured to the rear face of such sash rail and having a cutout portion, a closure seated in said cutout portion, forming a continuation of said outer plate and adapted to be secured to the rear face of such sash rail, a permanently inclined rectangular member positioned between said plates and having one of its faces roughened throughout, a bodily shiftable cylindrical roller having its periphery roughened throughout and coacting with said member to fasten the sash rail, a rotatable shaft journaled in the upper ends of said plates, flexible means carried by said shaft for bodily shifting said roller when the shaft is rotated, and means projecting from the outer end of the shaft and capable of engagenient in said outer plate to arrest rotation of the shaft.

In testimony whereof, I afiix my signature hereto.

CAMILE RICHARD. 

